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US 2024/0367192 A1Published application
Assembly for and method of dispensing a liquid
AssigneeFast & Fluid Managment B.V.
InventorsJohannes Hermanus Nicolaas Post, Marcel Engels, Peter Ronald Krom
Life of this patent
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Abstract
Assembly for dispensing a liquid, in particular a colorant for paint, comprising a container for holding a liquid, a pump, a valve, at least one dispense opening, and comprising or associated with a controller arranged to operate the pump and the valve to withdraw liquid from the container and to dispense liquid via the opening and to operate the pump and the valve to purge liquid from the pump to the container via the dispense opening.
Claims20
An apparatus for dispensing a plurality of liquids, the apparatus comprising a plurality of dispenser assemblies comprising:
- a container;
- a pump;
- a valve having a valve housing and a valve member in the valve housing, the valve member comprising an inlet channel and a dispense channel;
- and
- a controller arranged to operate the pump and the valve of a selected one of the dispenser assemblies to move the valve member into:
- an intake position connecting the container to the pump via the inlet channel to withdraw liquid from the container to the pump via the inlet channel;
- a dispense position connecting the pump to a dispense opening in a bottom part of the valve housing via the dispense channel to dispense liquid from the pump via the dispense channel;
- and
- a purge position connecting the pump to the container via the dispense channel and to purge liquid from the pump to the container via the dispense channel.
6 more elements
An apparatus for dispensing a plurality of liquids, the apparatus comprising a plurality of dispenser assemblies comprising:
- a container,
- a pump;
- a valve comprising:
- a valve housing comprising a dispense opening in a bottom of the valve housing and a pump inlet opening communicating with a pump inlet channel of the pump;
- and
- a rotatable valve member in the valve housing between the pump inlet opening and the dispense opening, the valve member comprising an inlet channel, a first dispense channel and at least one further dispense channel having a diameter different from the diameter of the first dispense channel, wherein the first and further dispense channels are radial channels within 120 degrees of rotation of the valve member from each other;
- wherein the apparatus further comprises a controller arranged to operate the pump and the valve of a selected one of the dispenser assemblies to rotate the valve member into:
- an intake position aligning the inlet channel of the valve member with the pump inlet opening to withdraw liquid from the container to the pump;
- a dispense position for each one of the first or further dispense channels, aligning the respective dispense channel with the dispense opening in the bottom part of the valve housing to allow dispensing of liquid from the pump via the respective dispense channel;
- and
- a purge position for each one of the first or further dispense channels connecting the pump to the container via the respective dispense channel and to purge liquid from the pump to the container via the respective dispense channel, while the inlet channel is closed;
- and
- wherein the controller is arranged to purge the first and further dispense channels sequentially.
10 more elements
An apparatus for dispensing a plurality of liquids, the apparatus comprising a plurality of dispenser assemblies comprising:
- a container;
- a pump;
- a valve comprising:
- a valve housing comprising a dispense opening in a bottom of the valve housing and a pump inlet opening communicating with a pump inlet channel of the pump;
- and
- a valve member in the valve housing between the pump inlet opening and the dispense opening, the valve member comprising an inlet channel, a first dispense channel and at least one further dispense channel;
- wherein the apparatus further comprises a controller arranged to operate the pump and the valve of a selected one of the dispenser assemblies to move the valve member into:
- an intake position aligning the inlet channel of the valve member with the pump inlet opening to withdraw liquid from the container to the pump;
- a dispense position for each one of the first or further dispense channels, aligning the respective dispense channel with the dispense opening in the bottom part of the valve housing to allow dispensing of liquid from the pump via the respective dispense channel;
- a purge position for each one of the first or further dispense channels connecting the pump to the container via the respective dispense channel and to purge liquid from the pump to the container via the respective dispense channel, while the inlet channel is closed;
- and
- a closing position closing the pump, the inlet channel and the dispense channels;
- and
- wherein the controller is arranged to establish whether liquid inside the pump is compressible, while the valve is in the closing position.
11 more elements
Dependencies are inferred from the claim text.